0.0  force x.q 1
0.3  force y.q 1
0.6  force x.q 0
0.7  press button
0.71 inc lever
0.72 inc lever
0.9  release button
1.0  release lever
1.1  force x.q 3
1.2  force x.q 5
1.3  force x.q 2.5
1.4  force x.q 1
1.5  force y.q 0
1.6  value lever -1.9
1.7  unforce x.q
2.5  toggle button